Development of Varietal Technology Elements for Cultivation of Buckwheat Variety Devyatka in the Zone of the Middle Priamurye

The article presents the results of studying some elements of the varietal technology for cultivation of buckwheat variety Devyatka. Among the studied forecrops, complete fallow and soybean have the greatest positive effect, as the yield is higher by 2–5 centners per hectare, in comparison with repeated crops and after cereals. When studying the sowing dates, it was found that for buckwheat variety Devyatka in the conditions of the Middle Priamurye, the most optimal sowing date was the third decade of May. At the specified sowing date, the highest grain yield was noted, on average over the research years, it amounted to 13.5 c/ha. While research on identifying the optimal plant density, it was figured out that the wide-row sowing method with a seeding rate of 3.0 million viable seeds per 1 ha was the most productive for buckwheat variety Devyatka, when cultivated in the conditions of the Middle Priamurye. In the variants noted above, a higher quality grain was also obtained, larger by the indicator of thousand grain weight, with a higher kernel yield and low filminess, in comparison with other variants.